Steam exhaust control method and device of cooking equipment and cooking equipment

Abstract

The embodiment of the invention provides a steam exhaust control method and device of cooking equipment and the cooking equipment. The method comprises the steps that under the condition that food materials in a cooking cavity are cooked, the steam content in the cooking cavity under multiple time steps is detected; under the condition that the steam variable quantity between the steam content of the current time step and the steam content of the last time step is abnormal, the number of continuous abnormal times corresponding to the steam variable quantity is determined, and a steam exhaust structure of the cooking cavity is controlled to execute a steam exhaust anti-leakage action matched with the number of continuous abnormal times; and when the cooking equipment stops cooking and it is detected that the steam variation between the steam content of the current time step and the steam content of the last time step is normal, the steam exhaust structure is controlled to execute the steam exhaust action until the steam content meets the preset steam content threshold value range and the steam temperature of the cooking cavity meets the preset temperature threshold value range. And the steam exhaust structure is controlled to stop executing the steam exhaust action. The method is used for reliably achieving the effect of steam exhaust control of steam.

Description

Technical Field

[0001] This application relates to the field of automatic control technology, and in particular to a steam control method, device and cooking equipment for cooking equipment. Background Technology

[0002] After steaming or steam ovens finish their steaming function, a large amount of high-temperature steam remains inside the cavity. If the user opens the door, the steam can rush out and directly hit them, causing burns. Therefore, more and more manufacturers are considering incorporating a steam venting structure into these cooking appliances to control the release of steam from the cooking cavity before the user opens the door.

[0003] Currently, most manufacturers use a steam exhaust structure that creates negative pressure through active air intake to control the rapid discharge of steam generated during cooking. Specifically, air is drawn from the periphery of the cooking cavity or the internal air duct of the device, and the built-in fan accelerates the steam discharge. In addition, for built-in cooking devices, air can also be drawn from the ventilation openings reserved in the cabinet where the cooking device is embedded, to prevent steam from accumulating in the cabinet and to assist in the steam discharge action in the cooking cavity.

[0004] However, current steam exhaust control methods for cooking equipment cannot reliably control steam exhaust. Summary of the Invention

[0005] This application provides a method, apparatus, and cooking equipment for controlling the exhaust steam of a cooking device, so as to reliably achieve the effect of controlling the exhaust steam.

[0006] In a first aspect, embodiments of this application provide a method for controlling the exhaust steam of a cooking device, comprising:

[0007] When cooking food placed inside the cooking chamber of a cooking device, the steam content inside the cooking chamber is measured at multiple time steps.

[0008] If the steam content at the current time step is abnormal compared to the steam content at the previous time step, determine the number of consecutive abnormalities corresponding to the steam change, and control the steam exhaust structure of the cooking cavity to perform a steam exhaust and leak prevention action that matches the number of consecutive abnormalities. The number of consecutive abnormalities is reset to zero when the steam change is normal.

[0009] When the cooking equipment stops cooking and the steam change between the current steam content and the previous steam content is detected to be normal, the exhaust structure is controlled to perform exhaust action until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity meets the preset temperature threshold range, at which point the exhaust structure is controlled to stop performing exhaust action.

[0010] In one possible implementation, the exhaust structure includes at least one electric valve body and an exhaust fan; controlling the exhaust structure of the cooking cavity to perform an exhaust leak-proof action matching the number of consecutive abnormalities includes:

[0011] If the number of consecutive abnormalities reaches the first preset value, the electric valve of the cooking device is controlled to perform a closing action at the current time step.

[0012] If the number of consecutive abnormalities is the second preset value, the exhaust fan of the cooking equipment is controlled to run at the first speed at the current time step, where the first speed refers to the speed to prevent steam leakage from the cooking cavity;

[0013] If the number of consecutive anomalies reaches the third preset value, a fault notification message will be pushed at the current time step.

[0014] In one possible implementation, the multiple time steps include at least a first time step, a second time step, a third time step, and a fourth time step ordered in chronological order.

[0015] In cases where the steam content at the current time step is abnormal compared to the steam content at the previous time step, determine the number of consecutive abnormalities corresponding to the steam content change, including:

[0016] If the change in the first steam content between the first steam content and the second steam content is less than or equal to the first preset abnormal threshold corresponding to the second time step, the number of consecutive abnormalities corresponding to the change in steam content is determined as the first preset value, wherein the first steam content is the steam content of the first time step and the second steam content is the steam content of the second time step.

[0017] If the change in the second steam content between the second steam content and the third steam content is less than or equal to the second preset abnormal threshold corresponding to the third time step, the number of consecutive abnormalities corresponding to the change in steam content is determined as the second preset value, wherein the third steam content is the steam content of the third time step;

[0018] If the change in the third steam content between the third steam content and the fourth steam content is less than or equal to the third preset abnormal threshold corresponding to the fourth time step, the number of consecutive abnormalities corresponding to the change in steam content is determined as the third preset value, wherein the fourth steam content is the steam content of the fourth time step.

[0019] In one possible implementation, the method for setting the preset anomaly threshold corresponding to the current time step includes:

[0020] Obtain the volume of the cooking cavity, as well as the steam generation efficiency and generator power of the cooking device's steam generator between the current time step and the previous time step;

[0021] Based on the cavity volume, steam generation efficiency, and generator power, the preset abnormal threshold corresponding to the current time step is detected.

[0022] In one possible implementation, controlling the exhaust structure to perform the exhaust action includes:

[0023] The exhaust fan of the cooking equipment is controlled to operate at a second speed, where the second speed refers to the speed at which steam can be discharged from the cooking cavity.

[0024] In one possible implementation, the multiple time steps include at least a first time step, which refers to the time step in which the steam content is initially detected; the method for determining the first time step includes:

[0025] Obtain the initial steam content when cooking of ingredients placed in the cooking chamber of the cooking equipment begins;

[0026] The time step at which the initial steam content changes by a preset percentage is determined as the first time step.

[0027] Secondly, embodiments of this application provide a steam exhaust control device for a cooking appliance, comprising:

[0028] The steam content detection module is used to detect the steam content in the cooking cavity at multiple time steps when cooking food placed in the cooking cavity of the cooking equipment.

[0029] The steam leakage prevention module is used to determine the number of consecutive abnormalities corresponding to the steam change when the steam content at the current time step is abnormal compared to the steam content at the previous time step, and to control the steam exhaust structure of the cooking cavity to perform a steam leakage prevention action that matches the number of consecutive abnormalities. The number of consecutive abnormalities is reset to zero when the steam change is normal.

[0030] The exhaust module is used to control the exhaust structure to perform exhaust actions when the cooking equipment stops cooking and the steam content at the current time step is detected to be normal compared with the steam content at the previous time step, until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity meets the preset temperature threshold range, and then control the exhaust structure to stop performing the exhaust action.

[0031] Thirdly, this application also provides a cooking device, including a cooking cavity, a steam exhaust structure, and a controller;

[0032] The cooking cavity is used to hold ingredients;

[0033] The exhaust structure is connected to the interior of the cooking cavity and is used to control the flow of steam inside the cooking cavity;

[0034] Controller, used for:

[0035] When cooking food placed inside the cooking chamber of a cooking device, the steam content inside the cooking chamber is measured at multiple time steps.

[0036] If the steam content at the current time step is abnormal compared to the steam content at the previous time step, determine the number of consecutive abnormalities corresponding to the steam change, and control the steam exhaust structure of the cooking cavity to perform a steam exhaust and leak prevention action that matches the number of consecutive abnormalities. The number of consecutive abnormalities is reset to zero when the steam change is normal.

[0037] When the cooking equipment stops cooking and the steam change between the current steam content and the previous steam content is detected to be normal, the exhaust structure is controlled to perform exhaust action until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity meets the preset temperature threshold range, at which point the exhaust structure is controlled to stop performing exhaust action.

[0038] Fourthly, embodiments of this application provide an electronic device, including: a memory and a processor;

[0039] The memory stores the instructions that the computer executes;

[0040] The processor executes computer execution instructions stored in memory, causing the processor to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0041] Fifthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the first aspect and / or various possible implementations of the first aspect.

[0042] In a sixth aspect, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the first aspect and / or various possible implementations of the first aspect.

[0043] The steam exhaust control method, device, and cooking equipment provided in this application accurately determine whether steam leakage is normal by detecting the steam content in the cooking cavity at multiple time steps. When the steam change between the current and previous time steps is abnormal, the system accurately controls the steam exhaust structure of the cooking cavity to perform a steam leakage prevention action matching the number of consecutive abnormalities by detecting the number of consecutive abnormalities. Furthermore, the number of consecutive abnormalities is reset to zero when the steam change is normal. Further, the system only activates the steam exhaust control method when the cooking equipment stops operating and the steam change between the current and previous time steps is detected to be normal. The steam exhaust structure is controlled to perform steam exhaust actions until the steam content meets the preset steam content threshold range and the steam temperature in the cooking cavity meets the preset temperature threshold range. At this point, the steam exhaust action stops. Throughout the process, on the one hand, the graded steam exhaust and leakage prevention actions triggered by the steam change between adjacent time steps and the number of consecutive abnormalities reliably reduce the risk of abnormal steam leakage during cooking. On the other hand, when the steam exhaust action stops, the dual threshold conditions of steam content and steam temperature must be met to reliably ensure the safe steam exhaust control of the steam in the cooking cavity after the equipment is shut down. In other words, this application considers both steam exhaust and steam leakage prevention to reliably achieve steam exhaust control. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0045] Figure 1 A schematic diagram illustrating a scenario for the exhaust steam control method of the cooking equipment provided in this application;

[0046] Figure 2 A schematic flowchart of the exhaust steam control method for the cooking equipment provided in this application;

[0047] Figure 3 This is a schematic flowchart of a steam exhaust control method for a cooking device provided in another embodiment of this application;

[0048] Figure 4 A schematic diagram of the structure of the cooking equipment provided in this application;

[0049] Figure 5 A detailed flowchart illustrating a steam exhaust control method for a cooking device provided in this application;

[0050] Figure 6 A schematic diagram of the exhaust control device for the cooking equipment provided in this application;

[0051] Figure 7A schematic diagram of the structure of the electronic device provided in this application.

[0052] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0053] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0054] Currently, more and more manufacturers are considering incorporating steam exhaust structures into these cooking appliances, allowing users to control the release of steam from the cooking cavity before opening the door. Most manufacturers use active suction to create negative pressure, controlling the rapid release of steam generated during cooking. Specifically, air is drawn from the periphery of the cooking cavity or from the internal air ducts, and a built-in fan accelerates steam release. Additionally, for built-in cooking appliances, air can be drawn from the ventilation openings in the cabinet where the appliance is installed, preventing steam buildup inside the cabinet and assisting in the steam release process within the cooking cavity.

[0055] However, the exhaust fan and exhaust valve body required for forced exhaust are prone to failure. When the exhaust fan is normal but the exhaust valve body cannot close, air will leak inside the cooking equipment, causing short circuits in electrical components and making it impossible to reliably control the exhaust of steam through the exhaust structure.

[0056] Therefore, this application provides a steam exhaust control method for a cooking device that can reliably control steam exhaust. By detecting the steam content within the cooking cavity at multiple time steps, it accurately determines whether steam leakage is normal. If the steam change between the current and previous time steps is abnormal, it accurately controls the exhaust structure of the cooking cavity to perform an exhaust leak prevention action matching the number of consecutive abnormalities by detecting the number of consecutive abnormalities. Furthermore, the number of consecutive abnormalities is reset to zero when the steam change is normal. Further, when the cooking device stops operating and the steam change between the current and previous time steps is detected to be normal... Under certain conditions, the exhaust structure is controlled to perform exhaust action until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity meets the preset temperature threshold range, at which point the exhaust action stops. Throughout the process, on the one hand, the graded exhaust anti-leakage action triggered by the steam change between adjacent time steps and the number of consecutive abnormalities reliably reduces the risk of abnormal steam leakage during cooking. On the other hand, when the exhaust action stops, the dual threshold conditions of steam content and steam temperature must be met to reliably ensure the safe exhaust control of steam in the cooking cavity by the exhaust structure after the equipment stops. In other words, this application considers both steam exhaust and steam leakage prevention to reliably achieve steam exhaust control.

[0057] The steam exhaust control method for cooking equipment provided in this application embodiment can be applied to, for example... Figure 1 In the application environment shown, the cooking device 1000 includes a cooking cavity 101, a steam exhaust structure 102, and a controller 103. The cooking cavity 101 is connected to the steam exhaust structure 102, and the controller 103 establishes a communication connection with the steam exhaust structure 102. The controller 103 is used to control the steam exhaust structure 102 to exhaust the steam inside the cooking cavity 101.

[0058] Specifically, when cooking food placed in the cooking cavity 101 of the cooking equipment 1000, the controller 103 detects the steam content in the cooking cavity 101 at multiple time steps. If the steam change between the current time step and the previous time step is abnormal, the controller 103 determines the number of consecutive abnormalities corresponding to the steam change and controls the exhaust structure 102 to perform an exhaust and leak prevention action matching the number of consecutive abnormalities. The number of consecutive abnormalities is reset to zero when the steam change is normal. When the cooking equipment stops cooking and the steam change between the current time step and the previous time step is detected to be normal, the controller 103 controls the exhaust structure 102 to perform an exhaust action until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity 101 meets the preset temperature threshold range, and then controls the exhaust structure to stop performing the exhaust action.

[0059] In one embodiment, a steam exhaust control method for a cooking device is provided. This embodiment uses the application of this steam exhaust control method to a controller 103 as an example for illustration. Figure 2 As shown, the exhaust steam control method of this cooking equipment includes:

[0060] S202. When cooking food placed in the cooking chamber of a cooking device, detect the steam content in the cooking chamber at multiple time steps.

[0061] Cooking equipment refers to appliances that process food through heating, steaming, baking, etc., such as electric pressure cookers, steam ovens, microwave ovens, and gas stoves. The cooking cavity is the core, sealed part of the cooking equipment, where food is placed and directly heated for cooking. It needs to meet requirements such as high temperature resistance, easy cleaning, and airtightness, such as the inner pot of an electric pressure cooker and the inner liner of a steam oven.

[0062] Specifically, when cooking food placed inside the cooking chamber of the cooking equipment, that is, when starting the "steam function" program, the controller needs to drive the electric gas valve of the cooking equipment to close to prevent steam leakage. At this time, the steam generator of the cooking equipment can heat water to convert it into steam and deliver the steam into the cooking chamber to cook the food placed inside. The cooking equipment is also equipped with a steam exhaust structure for the cooking chamber. The steam exhaust structure is a general term for the components used to guide, regulate, and discharge steam inside the cooking chamber, and is the core functional structure for realizing steam release, pressure control, and leakage prevention.

[0063] To prevent steam leakage inside the steam chamber during cooking, it is necessary to first detect steam leaks in the cooking chamber to prevent excessive steam leakage from condensing and causing greater losses.

[0064] Furthermore, steam leakage detection of the cooking cavity is achieved by detecting the steam content inside the cooking cavity. Therefore, it is necessary to detect the steam content inside the cooking cavity at multiple time steps.

[0065] In an optional embodiment, a gas sensor is installed inside the cooking cavity to detect the steam content inside the cooking cavity and provide real-time feedback to a controller, such as a computer board, to control the operation of cooking-related structures (such as heating elements and steam generators), thereby achieving cooking functions at different temperatures.

[0066] S204. If the steam content at the current time step is abnormal compared to the steam content at the previous time step, determine the number of consecutive abnormalities corresponding to the steam change, and control the steam exhaust structure of the cooking cavity to perform a steam exhaust and leak prevention action that matches the number of consecutive abnormalities. The number of consecutive abnormalities is reset to zero when the steam change is normal.

[0067] Specifically, during the process of detecting the steam content in the cooking cavity at multiple time steps, the steam content of the previous time step is obtained, and the steam content of the current time step is detected. The steam change between the current steam content and the previous steam content is calculated, and it is determined whether the steam change is abnormal. If the steam change is abnormal, it is considered that steam leakage has occurred in the steam cavity, and the steam content of the current time step is the steam content after the steam leakage. In this case, the change between the current steam content and the previous steam content is less than the theoretical change.

[0068] Furthermore, in the event of steam leakage within the steam chamber, it is necessary to control the exhaust structure to perform steam leakage prevention actions. In this application, the steam leakage prevention action is a graded process, meaning that this application can control the exhaust structure to perform different steam leakage prevention actions for different abnormal situations.

[0069] Specifically, when the steam content at the current time step is abnormal compared to the steam content at the previous time step, the number of consecutive abnormalities corresponding to the steam change is determined, and based on the number of consecutive abnormalities, the steam exhaust structure of the cooking cavity is controlled to perform steam exhaust and leak prevention actions that match the number of consecutive abnormalities.

[0070] It should be explained that the consecutive anomaly count refers to the number of consecutive anomalies in the steam change between adjacent time steps across multiple time steps. This consecutive anomaly count needs to meet both the conditions of being consecutive and anomaly. Taking multiple time steps as t-3, t-2, t-1, and t as an example, if the current time step is t-2, and the steam change between the steam content of t-3 and the steam content of t-2 is abnormal, then the consecutive anomaly count is 1. If the current time step is t-1, and the steam change between the steam content of t-3 and the steam content of t-2 is abnormal, while the steam change between the steam content of t-2 and the steam content of t-1 is normal, then the consecutive anomaly count is zero. If the current time step is t, and the steam changes between the steam content of t-3 and the steam content of t-2, the steam changes between the steam content of t-2 and the steam content of t-1, and the steam changes between the steam content of t-1 and the steam content of t-1 are all abnormal, then the consecutive anomaly count is 3.

[0071] In an optional embodiment, the means of determining whether the steam change is abnormal includes: determining whether the steam change is greater than a preset abnormal threshold corresponding to the current time step. If it is less than or equal to, it indicates that a steam leak has occurred in the exhaust structure, causing the steam content in the previous time period to fail to rise to the steam content required in the current time period. In this case, the steam change is abnormal. If it is greater than, it indicates that no steam leak has occurred in the exhaust structure. In this case, the steam change is normal.

[0072] In an optional embodiment, the steam exhaust structure of the cooking cavity is controlled to perform a steam leakage prevention action that matches the number of consecutive anomalies. For example, when the number of consecutive anomalies is small, the steam leakage prevention action can be a basic steam leakage prevention action. If the amount of steam change between two adjacent time steps is still abnormal after the basic steam leakage prevention action is completed, then as the number of consecutive anomalies increases, the steam exhaust structure of the cooking cavity is controlled to perform a more advanced steam leakage prevention action.

[0073] S206. When the cooking equipment stops cooking and the steam change between the current steam content and the previous steam content is detected to be normal, the exhaust structure is controlled to perform exhaust action until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity meets the preset temperature threshold range, and the exhaust structure is controlled to stop performing exhaust action.

[0074] Specifically, if the steam change between the current steam content and the previous steam content is normal, it indicates that the exhaust structure has not experienced a steam leakage malfunction. When the cooking equipment stops cooking the food placed in the cooking cavity, it needs to exhaust the steam in the cooking cavity to prevent the user from being scalded by steam when opening the door. Therefore, when the cooking equipment stops cooking and the steam change between the current steam content and the previous steam content is normal, the exhaust structure can be controlled to perform an exhaust action to quickly exhaust the high-temperature steam in the cooking cavity until the steam content meets the preset steam content threshold range and the steam temperature in the cooking cavity meets the preset temperature threshold range. At this point, the exhaust structure is controlled to stop performing the exhaust action.

[0075] In an optional embodiment, the steam content meets a preset steam content threshold range, or it can mean that the steam content in the cooking cavity drops to a preset safe steam content threshold to ensure the user's door opening experience; the steam temperature in the cooking cavity meets a preset temperature threshold range, or it can mean that the steam temperature in the cooking cavity drops to a preset safe temperature threshold to avoid the user being scalded by high-temperature steam.

[0076] In one optional embodiment, the preset steam content threshold range is set to 20%-25%. It has been verified that when the steam content meets the preset steam content threshold range, steam is basically invisible when the door of the cooking device is opened. At the same time, using the steam content as the endpoint judgment avoids the inconsistency of the endpoint value caused by the fixed steam exhaust time due to the inconsistent initial steam concentration, which would lead to differences in user experience. The preset temperature threshold range is generally set to 60%-80% to avoid the high temperature steam causing burns to the user during the door opening process.

[0077] In an optional embodiment, cooking the food placed inside the cooking cavity of the cooking device can be achieved by running the steaming function of the cooking device. The cooking device stops cooking, that is, it detects that the steaming function has ended.

[0078] In an optional embodiment, the cooking device of this application is not only equipped with a gas sensor, but also with a humidity detection and control function during the cooking process, which can be used to accurately detect the steam temperature of the cooking cavity in order to determine whether the steam temperature meets the preset temperature threshold range.

[0079] The steam exhaust control method of the aforementioned cooking equipment accurately determines whether steam leakage is normal by detecting the steam content in the cooking cavity at multiple time steps. When the steam change between the current and previous time steps is abnormal, the method accurately controls the steam exhaust structure of the cooking cavity to perform a steam leakage prevention action matching the number of consecutive abnormalities by detecting the number of consecutive abnormalities. This consecutive abnormality count is reset to zero when the steam change is normal. Furthermore, the steam exhaust structure is only controlled to perform a steam exhaust action when the cooking equipment stops operating and the steam change between the current and previous time steps is detected to be normal, until the steam... When the steam content meets the preset steam content threshold range and the steam temperature in the cooking cavity meets the preset temperature threshold range, the steam venting action stops. Throughout the process, on the one hand, the graded steam venting and leakage prevention action triggered by the steam change between adjacent time steps and the number of consecutive abnormalities reliably reduces the risk of abnormal steam leakage caused by abnormal steam venting structure during cooking. On the other hand, when the steam venting action stops, the dual threshold conditions of steam content and steam temperature must be met to reliably ensure the safe steam venting control of the steam in the cooking cavity by the steam venting structure after the equipment stops. In other words, this application considers both steam venting and steam leakage prevention of the steam venting structure, and reliably realizes the steam venting control of the steam by the steam venting structure.

[0080] In one exemplary embodiment, the exhaust structure includes at least one of an electric valve body and an exhaust fan; such as Figure 3 As shown, step 204 includes:

[0081] S2041, In the case of an abnormal change in steam content between the current time step and the previous time step, determine the number of consecutive abnormalities corresponding to the steam change.

[0082] S2042, if the number of consecutive abnormalities is a first preset value, control the electric valve body of the cooking device to perform a closing action at the current time step.

[0083] S2043, if the number of consecutive abnormalities is the second preset value, control the exhaust fan of the cooking equipment to run at the first speed at the current time step, wherein the first speed refers to the speed at which steam is prevented from leaking into the cooking cavity.

[0084] S2044, if the number of consecutive abnormalities reaches the third preset value, push a fault prompt message at the current time step.

[0085] Specifically, when the steam content at the current time step is abnormal compared to the steam content at the previous time step, the number of consecutive abnormalities corresponding to the steam change is determined. This number of consecutive abnormalities can be a first preset value, a second preset value, or a third preset value, or other preset values, which are not limited here. Matching steam leakage prevention actions are set for each of the multiple preset values. After obtaining the number of consecutive abnormalities, the matching steam leakage prevention action is determined, and the steam exhaust structure of the cooking cavity is controlled to execute the steam leakage prevention action matching the number of consecutive abnormalities.

[0086] The exhaust leakage prevention action matched with the number of consecutive anomalies refers to exhaust leakage prevention actions of different urgency levels. The urgency of the exhaust leakage prevention action is directly proportional to the number of consecutive anomalies. In other words, the higher the number of consecutive anomalies, the higher the urgency of the exhaust leakage prevention action.

[0087] More specifically, the exhaust structure in this application includes at least one electric valve body and an exhaust fan. The first, second, and third preset values ​​are sequentially increasing. When the number of consecutive abnormalities is the first preset value, the number of consecutive abnormalities is low, and a basic exhaust leakage prevention action can be taken at the current time step, i.e., controlling the electric valve body of the cooking equipment to perform a closing action to prevent steam leakage from the cooking cavity due to the electric valve body not being closed tightly. When the number of consecutive abnormalities is the second preset value, the number of consecutive abnormalities gradually increases, indicating that even controlling the electric valve body of the cooking equipment to perform a closing action cannot solve the problem. In the event of a steam leak, the exhaust fan of the cooking equipment should be operated at its first speed at the current time step. This first speed applies a counterforce to the leaking steam to prevent it from leaking out, but its low speed will not significantly affect the steam content and temperature in the cavity, nor will it cause rapid steam exhaust. If the number of consecutive abnormal occurrences reaches the third preset value, it indicates that neither controlling the electric valve of the cooking equipment to close nor controlling the exhaust fan to operate at its first speed can solve the steam leak problem. In this case, a fault message should be pushed out at the current time step to report the error and terminate the cooking program.

[0088] It should be noted that the reason for not directly controlling the exhaust fan of the cooking equipment to run at the first speed when the number of consecutive abnormalities is low is that closing the electric valve body is easier and cheaper to achieve; similarly, the reason for not directly reporting an error when the number of consecutive abnormalities is low is that there is no need to waste human resources.

[0089] In the above embodiments, as the number of consecutive anomalies gradually increases, the urgency of the steam leakage prevention action executed by the cooking device at the corresponding current time step also gradually increases. Therefore, by controlling the steam exhaust structure of the cooking cavity to execute graded steam leakage prevention actions based on the number of consecutive anomalies, this application can rationally allocate maintenance resources, reduce resource waste, and reliably prevent steam leakage from the steam cavity.

[0090] In one exemplary embodiment, the plurality of time steps include at least a first time step, a second time step, a third time step, and a fourth time step ordered in chronological order;

[0091] In cases where the steam content at the current time step is abnormal compared to the steam content at the previous time step, determine the number of consecutive abnormalities corresponding to the steam content change, including:

[0092] If the change in the first steam content between the first steam content and the second steam content is less than or equal to the first preset anomaly threshold corresponding to the second time step, the number of consecutive anomalies corresponding to the change in steam content is determined as the first preset value, where the first steam content is the steam content of the first time step and the second steam content is the steam content of the second time step; if the change in the second steam content between the second steam content and the third steam content is less than or equal to the second preset anomaly threshold corresponding to the third time step, the number of consecutive anomalies corresponding to the change in steam content is determined as the second preset value, where the third steam content is the steam content of the third time step; if the change in the third steam content between the third steam content and the fourth steam content is less than or equal to the third preset anomaly threshold corresponding to the fourth time step, the number of consecutive anomalies corresponding to the change in steam content is determined as the third preset value, where the fourth steam content is the steam content of the fourth time step.

[0093] Specifically, in this embodiment, the time steps for detecting the steam content in the cooking cavity can include at least a first time step, a second time step, a third time step, and a fourth time step, and these time steps are ordered sequentially in chronological order, i.e., the first time step is the time step for the first detection of the steam content in the cooking cavity, and the fourth time step is the time step for the last detection of the steam content in the cooking cavity. In other embodiments, the time steps for detecting the steam content in the cooking cavity are not limited to these four time steps, and can be fewer or more time steps.

[0094] Furthermore, the abnormal change in steam content between the current time step and the previous time step is actually due to steam leakage, causing the steam content at the current time step to fail to rise to the corresponding value from the previous time step. In other words, the change in steam content between the current and previous time steps is less than or equal to the preset abnormal threshold for the current time step. Therefore, the number of consecutive abnormalities corresponding to the steam change can be determined based on the number of consecutive abnormalities across multiple time steps.

[0095] Specifically, if the change in steam content between the first steam content in the first time step and the second steam content in the second time step is less than or equal to the first preset abnormal threshold corresponding to the second time step, the steam change is considered abnormal for the first time. The number of consecutive abnormalities corresponding to the steam change is then determined as a first preset value, for example, the number of consecutive abnormalities corresponding to the steam change can be 1. At this time, the electric valve of the cooking device can be controlled to perform a closing action in the second time step.

[0096] After the electric valve of the cooking equipment closes, the steam content at the third time step continues to be monitored. If the change in steam content between the second steam content and the third steam content at the third time step is less than or equal to the second preset abnormal threshold corresponding to the third time step, the steam change is considered abnormal for the second time. The number of consecutive abnormalities corresponding to the steam change is then determined as the second preset value, for example, 2. At this point, the exhaust fan of the cooking equipment can be controlled to run at the first speed at the third time step.

[0097] After the exhaust fan of the cooking equipment is running at the first speed, the steam content at the fourth time step is continuously monitored. If the steam change between the third steam content and the fourth steam content at the fourth time step is less than or equal to the third preset abnormal threshold corresponding to the fourth time step, the steam change is considered abnormal for the third time. The number of consecutive abnormalities corresponding to the steam change is determined as the third preset value, for example, the number of consecutive abnormalities corresponding to the steam change can be 3. At this time, a fault prompt message can be sent to maintenance personnel at the fourth time step.

[0098] It should be noted that the number of consecutive anomalies is not necessarily 1, 2, or 3; it can be other values ​​as well. No restrictions are imposed here, but the number of consecutive anomalies must match the corresponding exhaust leakage prevention action.

[0099] In an optional embodiment, if the third steam change amount is greater than the third preset abnormal threshold, then when the cooking device stops cooking, the exhaust structure is controlled to perform an exhaust action.

[0100] In an optional embodiment, the steam generator operates at full power during the period from the first time step to the third time step, and the humidification rate during the steam generation and stable supply phase is detected to reduce false alarms. At the same time, no water is added from the water tank to the steam pipeline during the detection period.

[0101] In the above embodiments, by determining the number of consecutive abnormalities corresponding to the steam change, the steam exhaust structure of the cooking cavity can be accurately controlled to perform steam exhaust and leak prevention actions that match the number of consecutive abnormalities, thereby reducing the occurrence of steam leakage in the cooking cavity and reliably realizing the steam exhaust control of the exhaust structure.

[0102] In an exemplary embodiment, the method for setting the preset anomaly threshold corresponding to the current time step includes:

[0103] Obtain the volume of the cooking cavity, as well as the steam generation efficiency and generator power of the steam generator of the cooking device between the current time step and the previous time step; based on the cavity volume, steam generation efficiency, and generator power, detect the preset abnormal threshold corresponding to the current time step.

[0104] Specifically, the preset anomaly threshold corresponding to the steam change at each time step is not a fixed value, but rather a value that changes continuously over time, corresponding to the preset anomaly threshold for the current time step. It can be considered that the first preset anomaly threshold is the preset anomaly threshold corresponding to the second time step, the second preset anomaly threshold is the preset anomaly threshold corresponding to the third time step, and the third preset anomaly threshold is the preset anomaly threshold corresponding to the fourth time step.

[0105] More specifically, the methods for setting the preset anomaly threshold corresponding to the current time step include:

[0106] The volume of the cooking cavity, the heat of vaporization required for water to convert to steam at 100°C, the steam density, and the steam generation efficiency and power of the steam generator of the cooking equipment between the current time step and the previous time step are obtained. Based on the volume of the cooking cavity, the heat of vaporization required for water to convert to steam at 100°C, the steam density, and the steam generation efficiency and power of the steam generator of the cooking equipment between the current time step and the previous time step, a preset abnormal threshold corresponding to the current time step is obtained.

[0107] For example, the preset anomaly threshold corresponding to the current time step is Δn. xy ,Δn xy =(η×P×(Tx-Ty)) / (2260×ρ×V), where P is the generator power of the steam generator, 2260 is the heat of vaporization required for water to convert to steam at 100℃, and ρ is the density of water vapor (g / cm³). 3 V is the volume of the cooking cavity (cm³). 3 ), where η is the steam generation efficiency of the steam generator, with a value of 0.75-0.8 (the general steam generation efficiency is 0.9). This is to leave a margin to reduce false judgments. Tx is the current time step, and Ty is the previous time step. The preset abnormal threshold corresponding to the current time step is the impact of the steam generated during the continuous heating and conversion of water into steam on the steam content of the cavity.

[0108] In the above embodiments, by setting a corresponding preset abnormal threshold for each time step, the process of determining whether the steam change between the current steam content and the previous steam content is abnormal is more accurate, thereby enabling more accurate determination of the corresponding steam exhaust and leak prevention action, and improving the cooking effect of the cooking equipment.

[0109] In one exemplary embodiment, controlling the exhaust structure to perform an exhaust action includes:

[0110] The exhaust fan of the cooking equipment is controlled to operate at a second speed, where the second speed refers to the speed at which steam can be discharged from the cooking cavity.

[0111] The second rotation speed is greater than the first rotation speed in the above embodiment to prevent steam leakage from the cooking cavity. When it operates at full speed, it can quickly squeeze the steam in the cooking cavity out of the exhaust pipe, thus achieving steam discharge.

[0112] Specifically, when the steaming function of the cooking equipment is detected to have ended, i.e., the cooking equipment stops cooking, and when the steam content at the current time step is detected to be normal compared to the steam content at the previous time step, the exhaust fan of the cooking equipment is controlled to run at the second speed, so that the exhaust fan can quickly discharge the steam from the cooking chamber.

[0113] In an optional embodiment, such as Figure 4 As shown, the cooking equipment includes a cooking cavity 1 and a steam exhaust structure. The steam exhaust structure includes not only an exhaust fan 2, but also a connecting pipe 3 (such as a reducer), an exhaust valve 4 (such as an electric valve body), a gas sensor 5, and an exhaust pipe 6. The gas sensor detects the steam content inside the cooking cavity. The exhaust pipe connects the cooking cavity to the external exhaust duct to achieve internal and external pressure balance. The reducer, with its tapered or stepped structure (large end to small end), connects the exhaust fan to the cooking cavity. The electric valve body is used for steam exhaust. The steam exhaust function is achieved by the exhaust fan blowing air into the cavity at a second rotation speed, forcing the steam out of the cooking cavity, and simultaneously discharging the steam inside the cooking cavity through the exhaust pipe into the external exhaust duct.

[0114] In the above embodiments, by controlling the exhaust fan of the cooking equipment to run at the second speed, the steam in the cooking cavity can be quickly discharged, avoiding a large amount of high-temperature steam remaining, which could cause the steam to spray directly at the user when the door is opened, resulting in burns.

[0115] In one exemplary embodiment, the plurality of time steps includes at least a first time step, which refers to the time step in which the steam content is initially detected; the method for determining the first time step includes:

[0116] The initial steam content is obtained when the food placed in the cooking cavity of the cooking equipment is started to be cooked; the time step when the change in the initial steam content reaches a preset ratio is determined as the first time step.

[0117] Specifically, the multiple time steps include at least the first time step for initially detecting the steam content; obtaining the initial steam content when the food placed in the cooking cavity of the cooking equipment begins to be cooked; the first time step is defined as the time step after the steam content changes by at least a preset percentage from the initial steam content. For example, if the preset percentage is 5%, and the initial steam content is 10%, then the time step with a steam content of 15% and subsequent time steps are selected as the first time step to prevent misjudgment of whether the steam change is abnormal due to differences in steam output rate caused by differences in water temperature, etc.

[0118] In the above embodiments, by determining the time step when the change in initial steam content reaches a preset proportion as the first time step, it is possible to prevent misjudgment of whether the change in steam content is abnormal due to differences in steam output rate caused by differences in water temperature, etc., thereby improving the accuracy of the steam exhaust and anti-leakage action and reliably reducing steam leakage.

[0119] In one exemplary embodiment, when one or more abnormal changes in steam volume are detected, the user will be alerted to a valve malfunction at the end of the cooking process so that the user can contact after-sales service for assistance.

[0120] In one exemplary embodiment, the cooking device includes a cooking cavity, a steam generator, a steam exhaust assembly, and a controller (such as a control board). The steam exhaust assembly includes a steam exhaust fan, a reducing coupling, a vent valve, a gas sensor, and a steam exhaust pipe. The gas sensor is used to detect the steam content inside the cooking cavity. The steam exhaust pipe is used to connect the cooking cavity to an external steam exhaust duct to achieve internal and external pressure balance. The reducing coupling, with its tapered or stepped structure (large end to small end), can be used to connect the cooking cavity and the steam exhaust fan. The steam exhaust valve is used to control whether steam is vented. The steam exhaust function is achieved by controlling the steam exhaust valve to open. When the steam exhaust fan rotates at a second speed, air is blown into the cavity to compress the steam inside the cooking cavity, while the steam inside the cooking cavity is discharged to the external steam exhaust duct through the steam exhaust pipe.

[0121] For easier description, such as Figure 5 As shown, the following will use the cooking device with the above structure as an example to describe in detail how the steam exhaust control method of the cooking device of this application can reliably achieve steam exhaust control, including:

[0122] S1. Start the "Steam Function" program to cook the food placed in the cooking cavity of the cooking equipment. At this time, the control board drives the electric gas valve to close to prevent steam leakage, and the steam generator starts to work to produce steam.

[0123] S2, set time T1, detected cavity steam content n1.

[0124] S3, set time T2, detect the steam content n2 in the chamber.

[0125] S4. Determine whether the steam change n2-n1 within the time interval ΔT12 between time T1 and time T2 is greater than Δn12; if not, the control board drives the electric valve body to close again; if so, proceed to step S6.

[0126] After the electric valve body is closed again, when the time changes from T2 to T3, it is determined again whether the steam change n3-n2 within the time interval ΔT23 between time T2 and time T3 is greater than Δn23. If not, proceed to step S5.

[0127] S5. Start the exhaust fan at the first speed until the program ends. The first speed is used to apply a reverse force to the leaking steam to prevent it from leaking out. However, its speed is low and will not have a significant impact on the steam content and temperature of the cavity, resulting in rapid steam discharge. After starting the exhaust fan, continue to determine the steam content during the time period ΔT34 from T3 to T4. That is, determine again whether the steam change n4-n3 within the time period ΔT34 is greater than Δn34. If not, directly issue a fault alarm and end the program. If yes, proceed to step S6.

[0128] S6. When the "steam function" program is detected to have ended, the exhaust fan is turned on and runs at the second speed to quickly exhaust the steam in the cooking cavity. The exhaust ends when the steam content in the cooking cavity drops to m and the temperature drops to p.

[0129] In the above steps, by providing a method that can accurately detect whether steam is leaking inside the cooking cavity and handle the leakage, temporary measures can be taken in time when the steam exhaust structure fails, preventing excessive steam leakage from forming condensation in the appliance and causing greater losses. At the same time, during normal steam exhaust, the steam exhaust action needs to meet the dual threshold conditions of steam content and steam temperature to stop, reliably ensuring the safe steam exhaust control of the steam inside the cooking cavity after the equipment is shut down. Therefore, this application considers both steam exhaust and steam leakage prevention, and reliably achieves steam exhaust control.

[0130] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0131] Based on the same inventive concept, this application also provides a steam exhaust control device for implementing the steam exhaust control method of the cooking equipment described above. The solution provided by this steam exhaust control device is similar to the solution described in the steam exhaust control method of the cooking equipment. Therefore, the specific limitations in one or more device embodiments provided below can be found in the limitations of the steam exhaust control method of the cooking equipment described above, and will not be repeated here.

[0132] In one embodiment, such as Figure 6 As shown, a steam exhaust control device 600 for a cooking appliance is provided, comprising:

[0133] The steam content detection module 602 is used to detect the steam content in the cooking cavity at multiple time steps when cooking food placed in the cooking cavity of the cooking equipment.

[0134] The steam leakage prevention module 604 is used to determine the number of consecutive abnormalities corresponding to the steam change when the steam content at the current time step is abnormal compared to the steam content at the previous time step, and to control the steam exhaust structure of the cooking cavity to perform a steam leakage prevention action that matches the number of consecutive abnormalities. The number of consecutive abnormalities is reset to zero when the steam change is normal.

[0135] The exhaust module 606 is used to control the exhaust structure to perform exhaust action when the cooking equipment stops cooking and the steam change between the current steam content and the previous steam content is detected to be normal, until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity meets the preset temperature threshold range, and then control the exhaust structure to stop performing the exhaust action.

[0136] In some optional embodiments, the exhaust structure includes at least one of an electric valve body and an exhaust fan; the steam leak prevention module 604 is also used for:

[0137] If the number of consecutive abnormalities reaches the first preset value, the electric valve of the cooking device is controlled to perform a closing action at the current time step.

[0138] If the number of consecutive abnormalities is the second preset value, the exhaust fan of the cooking equipment is controlled to run at the first speed at the current time step, where the first speed refers to the speed to prevent steam leakage from the cooking cavity;

[0139] If the number of consecutive anomalies reaches the third preset value, a fault notification message will be pushed at the current time step.

[0140] In some optional embodiments, the multiple time steps include at least a first time step, a second time step, a third time step, and a fourth time step ordered in chronological order; the steam leak prevention module 604 is also used for:

[0141] If the change in the first steam content between the first steam content and the second steam content is less than or equal to the first preset abnormal threshold corresponding to the second time step, the number of consecutive abnormalities corresponding to the change in steam content is determined as the first preset value, wherein the first steam content is the steam content of the first time step and the second steam content is the steam content of the second time step.

[0142] If the change in the second steam content between the second steam content and the third steam content is less than or equal to the second preset abnormal threshold corresponding to the third time step, the number of consecutive abnormalities corresponding to the change in steam content is determined as the second preset value, wherein the third steam content is the steam content of the third time step;

[0143] If the change in the third steam content between the third steam content and the fourth steam content is less than or equal to the third preset abnormal threshold corresponding to the fourth time step, the number of consecutive abnormalities corresponding to the change in steam content is determined as the third preset value, wherein the fourth steam content is the steam content of the fourth time step.

[0144] In some optional embodiments, the exhaust control device 600 of the cooking apparatus further includes a threshold setting module, which is used for:

[0145] Obtain the volume of the cooking cavity, as well as the steam generation efficiency and generator power of the cooking device's steam generator between the current time step and the previous time step;

[0146] Based on the cavity volume, steam generation efficiency, and generator power, the preset abnormal threshold corresponding to the current time step is detected.

[0147] In some alternative embodiments, the exhaust module 606 is further configured to:

[0148] The exhaust fan of the cooking equipment is controlled to operate at a second speed, where the second speed refers to the speed at which steam can be discharged from the cooking cavity.

[0149] In some optional embodiments, the multiple time steps include at least a first time step, which refers to the time step in which the steam content is initially detected; the exhaust control device 600 of the cooking equipment further includes a first time step determination module, which is used for:

[0150] Obtain the initial steam content when cooking of ingredients placed in the cooking chamber of the cooking equipment begins;

[0151] The time step at which the change in initial steam content reaches a preset proportion is defined as the first time step.

[0152] Each module in the above-mentioned device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0153] This application also provides a cooking device, including a cooking cavity, a steam exhaust structure, and a controller;

[0154] The cooking cavity is used to hold ingredients;

[0155] The exhaust structure is connected to the interior of the cooking cavity and is used to control the flow of steam inside the cooking cavity;

[0156] Controller, used for:

[0157] When cooking food placed inside the cooking chamber of a cooking device, the steam content inside the cooking chamber is measured at multiple time steps.

[0158] If the steam content at the current time step is abnormal compared to the steam content at the previous time step, determine the number of consecutive abnormalities corresponding to the steam change, and control the steam exhaust structure of the cooking cavity to perform a steam exhaust and leak prevention action that matches the number of consecutive abnormalities. The number of consecutive abnormalities is reset to zero when the steam change is normal.

[0159] When the cooking equipment stops cooking and the steam change between the current steam content and the previous steam content is detected to be normal, the exhaust structure is controlled to perform exhaust action until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity meets the preset temperature threshold range, at which point the exhaust structure is controlled to stop performing exhaust action.

[0160] Specifically, this embodiment provides a cooking device, including a cooking cavity, a steam exhaust structure, and a controller. Furthermore, the cooking device also includes a steam generator for generating steam to cook food placed inside the cooking cavity. The steam exhaust structure includes at least one of an electric valve and a steam exhaust fan. The controller controls the steam exhaust structure of the cooking device to prevent steam leakage or control steam exhaust based on the steam change between the current steam content and the previous steam content. The specific methods for this control have been described in the above embodiments and will not be repeated here.

[0161] Figure 7 A schematic diagram of the structure of the electronic device provided in this application. Figure 7 As shown, the electronic device 700 provided in this embodiment includes at least one processor 701 and a memory 702. Optionally, the device 700 further includes a communication component 703. The processor 701, memory 702, and communication component 703 are connected via a bus 704.

[0162] In a specific implementation, at least one processor 701 executes computer execution instructions stored in memory 702, causing at least one processor 701 to perform the above-described method.

[0163] The specific implementation process of processor 701 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0164] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0165] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0166] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0167] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0168] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0169] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0170] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0171] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0172] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0173] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0174] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0175] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0176] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A method for controlling the exhaust steam of a cooking device, characterized in that, include: When cooking food placed inside the cooking chamber of a cooking device, the steam content inside the cooking chamber is detected at multiple time steps. If the amount of steam change between the current steam content and the previous steam content is abnormal, determine the number of consecutive abnormalities corresponding to the amount of steam change, and control the steam exhaust structure of the cooking cavity to perform a steam exhaust and leak prevention action that matches the number of consecutive abnormalities, wherein the number of consecutive abnormalities is reset to zero when the amount of steam change is normal. When the cooking device stops cooking and the steam change between the current steam content and the previous steam content is detected to be normal, the steam exhaust structure is controlled to perform a steam exhaust action until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity meets the preset temperature threshold range, at which point the steam exhaust structure is controlled to stop performing the steam exhaust action.

2. The method according to claim 1, characterized in that, The exhaust structure includes at least one of an electric valve body and an exhaust fan; the exhaust structure controlling the cooking cavity performs an exhaust leak prevention action matching the number of consecutive abnormalities, including: If the number of consecutive abnormalities is a first preset value, the electric valve of the cooking device is controlled to perform a closing action at the current time step; If the number of consecutive abnormalities is a second preset value, the exhaust fan of the cooking equipment is controlled to run at a first speed at the current time step, wherein the first speed refers to the speed at which steam is prevented from leaking into the cooking cavity; If the number of consecutive anomalies reaches a third preset value, a fault notification message will be pushed at the current time step.

3. The method according to claim 2, characterized in that, The plurality of time steps include at least a first time step, a second time step, a third time step, and a fourth time step ordered in chronological order; In the event of an abnormal change in steam content between the current time step and the previous time step, determining the number of consecutive abnormalities corresponding to the steam change includes: If the first steam change between the first steam content and the second steam content is less than or equal to the first preset abnormal threshold corresponding to the second time step, the number of consecutive abnormalities corresponding to the steam change is determined to be the first preset value, wherein the first steam content is the steam content of the first time step, and the second steam content is the steam content of the second time step; If the second steam change between the second steam content and the third steam content is less than or equal to the second preset anomaly threshold corresponding to the third time step, the number of consecutive anomalies corresponding to the steam change is determined as the second preset value, wherein the third steam content is the steam content of the third time step; If the change in the third steam content between the third steam content and the fourth steam content is less than or equal to the third preset abnormal threshold corresponding to the fourth time step, the number of consecutive abnormalities corresponding to the change in steam content is determined as the third preset value, wherein the fourth steam content is the steam content of the fourth time step.

4. The method according to claim 3, characterized in that, The methods for setting the preset anomaly threshold corresponding to the current time step include: Obtain the cavity volume of the cooking cavity, and the steam generation efficiency and generator power of the steam generator of the cooking device between the current time step and the previous time step; Based on the cavity volume, the steam generation efficiency, and the generator power, a preset abnormal threshold corresponding to the current time step is detected.

5. The method according to claim 1, characterized in that, The control of the exhaust structure to perform the exhaust action includes: The exhaust fan of the cooking equipment is controlled to operate at a second rotational speed, wherein the second rotational speed refers to the rotational speed at which steam can be discharged from the cooking cavity.

6. The method according to claim 1, characterized in that, The plurality of time steps includes at least a first time step, which refers to the time step in which the steam content is initially detected; the method for determining the first time step includes: Obtain the initial steam content when cooking of ingredients placed in the cooking chamber of the cooking equipment begins; The time step at which the change in the initial steam content reaches a preset proportion is determined as the first time step.

7. A steam exhaust control device for a cooking appliance, characterized in that, include: A steam content detection module is used to detect the steam content in the cooking cavity of a cooking device at multiple time steps when cooking food placed inside the cooking cavity. A steam leak prevention module is used to determine the number of consecutive abnormalities corresponding to the steam change when the steam content at the current time step is abnormal compared to the steam content at the previous time step, and to control the steam exhaust structure of the cooking cavity to perform a steam leak prevention action that matches the number of consecutive abnormalities, wherein the number of consecutive abnormalities is reset to zero when the steam change is normal. The exhaust module is used to control the exhaust structure to perform an exhaust action when the cooking device stops cooking and the steam change between the current steam content and the previous steam content is detected to be normal, until the steam content meets a preset steam content threshold range and the steam temperature of the cooking cavity meets a preset temperature threshold range, and then control the exhaust structure to stop performing the exhaust action.

8. A cooking device, characterized in that, Including the cooking cavity, exhaust structure, and controller; The cooking cavity is used to hold the ingredients; The exhaust structure is connected to the interior of the cooking cavity and is used to control the flow of steam inside the cooking cavity; The controller is used for: When cooking food placed inside the cooking chamber of a cooking device, the steam content inside the cooking chamber is detected at multiple time steps. If the amount of steam change between the current steam content and the previous steam content is abnormal, determine the number of consecutive abnormalities corresponding to the amount of steam change, and control the steam exhaust structure of the cooking cavity to perform a steam exhaust and leak prevention action that matches the number of consecutive abnormalities, wherein the number of consecutive abnormalities is reset to zero when the amount of steam change is normal. When the cooking device stops cooking and the steam change between the current steam content and the previous steam content is detected to be normal, the steam exhaust structure is controlled to perform a steam exhaust action until the steam content meets the preset steam content threshold range and the steam temperature of the cooking cavity meets the preset temperature threshold range, at which point the steam exhaust structure is controlled to stop performing the steam exhaust action.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

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